QSBitcoin represents a breakthrough in quantum-resistant cryptocurrency design, implementing NIST-standardized algorithms through an elegant soft fork of Bitcoin Core with unified opcodes.
QSBitcoin's most significant innovation is the unified opcode design, reducing complexity while maximizing extensibility:
This design allows QSBitcoin to support multiple quantum algorithms (ML-DSA, SLH-DSA) and future algorithms without consensus changes.
QSBitcoin implements only NIST-standardized post-quantum algorithms, ensuring maximum security and compliance:
By using only standardized algorithms, QSBitcoin ensures compatibility with future quantum-safe infrastructure and regulatory compliance.
QSBitcoin's soft fork approach preserves the Bitcoin network while adding quantum resistance:
This approach respects Bitcoin's conservative philosophy while providing essential quantum protection.
| Feature | Traditional Approach | QSBitcoin Innovation | Benefit |
|---|---|---|---|
| Opcodes | One opcode per algorithm | Unified opcodes with algorithm ID | Extensibility without consensus changes |
| Weight Calculation | Fixed 4x for all witness data | 3x for ML-DSA, 2x for SLH-DSA | Reflects actual validation costs |
| Address Format | New address types needed | Standard P2WSH (bc1q...) | Privacy and compatibility |
| Key Management | HD derivation assumed | Non-copyable, move-only keys | Quantum key security |
| Fee Structure | No adoption incentives | Standard fees based on size | Fair resource-based pricing |
| Push Size Limit | 520 bytes maximum | Bypassed for quantum data | Supports large signatures |
Completed quantum key infrastructure, signature verification, and initial wallet integration with unified opcode design.
Core quantum features operational. Quantum addresses can generate, receive, and spend funds on testnet/regtest. Comprehensive test suite in place.
Fixed manual UTXO selection and PSBT support. Enhanced InferDescriptor to parse quantum witness scripts correctly.
Active development continues on testnet and regtest networks. Awaiting further testing and community consensus for mainnet activation.
By implementing as a soft fork rather than creating an altcoin, QSBitcoin enhances Bitcoin without fragmenting the ecosystem. All existing infrastructure, exchanges, and services continue to work.
No forced migration means users control their own timeline for adopting quantum-safe addresses. ECDSA addresses continue to function, allowing gradual transition.
The unified opcode architecture means new quantum algorithms can be added as they're standardized, without requiring additional consensus changes.
Fee discounts and optimized weight calculations make quantum transactions economically viable, encouraging adoption while maintaining network sustainability.
QSBitcoin is open source and welcomes contributions. Help us build the quantum-safe future of Bitcoin.